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This animation illustrates how the magnetic field surrounding Jupiter's moon Ganymede (represented by the blue lines) interacts with and disrupts the magnetic field surrounding Jupiter (represented by the orange lines).

During the June 2021 close approach to Ganymede by NASA's Juno spacecraft, the Magnetic Field (MAG) and Jovian Auroral Distributions Experiment (JADE) instruments aboard the spacecraft recorded data showing evidence of the breaking and reforming of magnetic field connections between Jupiter and Ganymede.

Studying Ganymede's magnetic field can provide scientists with clues about the nature of the salty water reservoir suspected to exist deep under the moon's surface.

More information about Juno is at https://www.nasa.gov/juno and https://missionjuno.swri.edu.